Shoe



Aug. 7, 1928'.

w. J. BRIGG SHOE Filed July l5. 1925 Patented Aug. 7, 1928.

UNITED 'ras PATENT OFFICE.

\VALTER JOHN BRIGG, OF EPPING, SYDNEY, III-XV SOUTH WALES, AUSTRALIA.

SHOE.

Application led July 15,

This invention relates to attaching means for attaching wear receiving elements, suoli as heels, toe caps and soles to shoes. l

An object of this invention is to provide improved means especially adapted for attaching a wear receiving element, such tor example as a heel, to a shoe, by a direct sliding movement of the parts to be attached, -and without the use of attachment plates or similar means which tend undesirably to stiften the wear element.

A further object of this invention is to provide a device of this character which may be used selectively either with or without the attaching elements that is to say., to provide a Wear element which may be nailed upon a shoe in the ordinary manner, or in which the advantage may be had of attaching it without the nails, or which mayhbe attached to a shoe by detachable attaching means supplemented by nails cooperating therewith.

A further object of this invention is to provide a device of this character which may be molded, and in which the mold is adapted to improve the character ot the heel when it is not desired to use the attaching devices.

A further object of this invention is to provide an improved wear element for a shoe.

lVith the foregoing and other obiects in view I have invented the device illustrated in the accompanying drawings, in which:

Figure 1 is a top plan view of a detachable f heel.

Figure 2 is a like View to Figure l, when a heel is molded without the attaching means.

Figure 3 is a fragmentary bottom plan View showing t-lie attaching means as affixed to the shoe.

Figure 4 is a fragmentary .section through a heel provided with my device..

Figure 5 is a transverse section through i the bottom of a shoe heel provided with my 1925. Serial N0. 43,863.

Figure 10 is an enlarged view of a detail shown in Fig. 9.

Referring to the drawings, a heel 2 or other tread or wear receiving element for a shoe is provided with a plurality of attaching pins or buttons 3, each having a flaring or headed anchoring end 4 embedded in the rubber or other material composing the heel, as shown in Figs. 4 and 5. The other end of pin 3 protrudes from the material of the heel and has a flaring head 6 which is spaced slightly from the adjacent surface oi the heel, thus providing a space thereunder for the interlocking engagement of the similarly shaped headed pins 7, protruding from the base of shoe 7. Pin 3 is illustrated as having the form of a spool with an axial hole therethrough, but may have any other forni capable of interlocking suitably with pin 7. Pins 7 may be nails driven into the shoe base 7 and are held fast therein by clinching or by any other suitable means.

Pins 3 are disposed in predetermined spaced relation in a row, pins 7 being similarly arranged in a row, the two rows being preferably semi-elliptical or U-shaped so that they may be readily engaged with each other. One of the rows is preferably slightly larger than the other to permit the rows to slide in relation to each other, that is, so that the heads of the pins in one row may slide past the shanks of the pins in the other row while moving the parts containing the pins into or out of attaching engagement. It will be seen that the position of the undercut heads of pins 3 and 7 is such as to form a channel along the surface ot the heel or part in which they are located.

When attaching the heel to the shoe the side of heel 2 containing pins 3 is faced toward the bottom 7 of the shoe, so that the U-shaped rows of pins are similarly directed, the open end of the U of the heel row being positioned nearer to the closed end of the L! of the shoe row and the channels under the heads of the pins in the two rows being substantially in the same plane. The heel and shoe base may then be slid into engagement by direct sliding in said plane, suicient force being applied to insure that the Shanks and heads of the pins in one row may escape by the shanks and heads of the pins in the other row. It is thus possible to move the heel from a predetermined position remote from the shoe base 7 along a substantially linear path leading directly to collar provides a L. 7 nterlock with each other and the heel is at ached to the shoe, as shown in section in Fig. 5. l

rhe collar or washer 5 is preferably movable with respect to pin 3 and surrounds the shank of pin 3 to form a yielding guard adjacent to the shank of the pin to distribute the pressure between heel 2 and the head of pin 7 abutting thereon and for protecting the heel from wear due to relative movement of lpins 7 and heel 2 when walking with the heel or when subjecting it to the ordinary for-ces encountered in use. Furthermore the firmer bearing tiran the rubber of the heel for the heads of pins 7 and aids in guiding the heads of pins 7 when attaching or detaching the heel.

Pin V3 preferably has a tubular shank i position wherein the heads of pins 3 and J. which provides a hole for a nail for attaching thevheel to the shoe in case it is desired to supplement the attaching means provided by the peripheral or head portion 6 of pin 3 engaging with pin 7, or in case the head 6 fails properly to cooperate with its corresponding'pin 7, or in case it is desired to depend exclusively upon'nails to attach the heel to the shoe as when no pins 7 are pro videdin the shoe base.

The head of the attaching nail 8, as shown by dotted lines, Fig. 5, engages with the upper central portion of the pin 3 in a mannersimilar to the engagement of a nail with a nail washer in a rubber heel of usual commercial construction. vIt will thus be seen that the peripheral portion of end 6 of pin 3 may serve in part for attaching the heel to the shoe while the central portion at the other end of the pin may serve in part for attaching' the heel tothe shoe, either or both attaching means being selectable as may be desired.

By' giving the Haring end 6 of pin 3, a

'funnel or cone shape, the head of pin 7 more readily enters the space between head 6 and collar 5. Furthermore the head of pin 7 is subjected to firm pressure between head 6 and collar 5 owing to the elasticity of heel 2, the materi'l of which tends to become compressed `between end 4 and collar 5 when collar 5 and head 6 are separated. This arrangement t-hus insures a tight connection of the heel with the shoe.

The mold for forming the heel or other wear element to be attached to the shoe comprises a top plate o f the usual form (not shown),"p'rovided with the desired configuration. for molding thevbottom or tread surfacev 'of the heel', and-the bottom plate 10. Plate 10 is'bevelled on its upper edge at 11 and is provided with recesses on sinks 12,

' the bottoms I4 of which are convex in form vcorresponding with the form of the concave endl 6"of pin 3. v Pilot pinv3 arisingvfrom 'i the center of each` sink 12 helps tov fix the position of pin 3 during the molding operation. Collar 5 surrounding pin 3 closes tl e upper portion of sink 12 and prevents the rubber or other molding material from being forced into the sink.

The plate 15, normally resting upon plate 10, n ay be suitably held in relation therewith by pilot pin 16, the upper edge of the plate being preferably bevelled at 17. Plate 15 produces a cavity 15 in the upper surface of the heel and allows the heel to yield when subjected to strains encountered in use, so that a greater resilience is produced. The bevelled portion 11 of the mold produces an upstanding edge, like the rim of a cup, surrounding the space containing pins 3 and 7 at the top of the heel, and provides a tightly closed seam between the heel and the shoe to conceal the attaching means.

If desired, the attaching pins 3 may be omitted, in which case the molding material fills sinks 12 and produces circular protu- 'berances 18, Fig. 2, spaced apart in a U- shaped row corresponding with the row of pins 3 in Fig. 1. These protuberances in conjunction with the recess 15 serve to provide the heel with particularly desirable resilient qualities. The heel may be attached to a shoe by nailing or other well known means. Y A In the modifica-tion shown in Fig. 9, I have provided a different form of pin 3 for the heel 2', the head of the pin being of semi-circular form with the nail or shank of the pin connecting with the head near its circular edge, so that the diametrical or straight portion of the head faces inwardly, a channel being formed beneath these portions in the row of pins. I also provide a pin 21, similar to pin 3', located between the arms of the U-shaped row of pins 3. Screw 22 threaded from the inside of the shoe engages the nut 20, which may be provided with serrated edges 24, the nut being embedded in heel 2 between opposite sides thereof. Pin 21 and screw 22 cooperate to hold the heelmore securely to the shoe, screw 22 serving to lock the heel in position.

It. is obvious that the invention is applicable to portions of the shoe other than the heel. For example, it may be employed for attaching sole, toe cap or other wear receiving element or other portion of the shoe. The forms of pins 3 and 7 may be varied considerably' from those shown while still embodying the principles disclosed herein.

I claim: l

1. In combination, a shoe, a wear element therefor, each of said parts having a plurality of pins projectlng therefrom, said pins in one of said parts being adapted to detachably interlock with those in said other part.

2. In a wear element for a shoe, a row of attachment pins, each of said pins having a headed end embedded in said Wear element and a headed end projecting therefrom, and a yieldable guard adjacent said pin between said projecting end and said wear element.

3. In a tread element for a shoej a plurality of spaced attachment means, each of said means having a portion embedded in said tread element and each having a nail hole so positioned therethrough that the head ef an attachment nail may engage with said means for securing' said tread element to the shoe, and each et' said means having a headed attachment portion projecting from said tread element and adapted for attachment to the shoe either independently of or in cooperation With an attachment nail through said means.

4. 1n a tread element for a shoe, a plurality of spaced spoel-shaped buttons, each having a nail hole therethrough, one end el each of said spools being embedded in said tread element, and the other end thereot projecting from said tread element, whereby said tread element may he attached to the shoe either independently of or in c0- operation with an attachment nail passing through said hole.

In testimony whereof I atHX my signature.

WALTER JOHN BRIGG. 

